h1,h2,body{
    margin: 0;
    padding: 0;
}
.tab{
    width: 100%;
    display: flex;
    align-items: center;
    text-align: center ;
    height:35px;
}
.tab-item{
    flex: 1;
}

.navbars{
    display: flex;
}

.right,.left{
    width: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgb(131, 234, 80);
}

.content{
    flex: 1;
    background-color: rgb(52, 82, 61);
}

.text{
    padding: 3px;
     color: red;
    font-size: 16px;
    border-bottom: 3px solid red;
}
body{
   padding: 0;
margin: 0;
}